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27 May 1996 Effect of ionizing radiation on the properties of KDP single crystals
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The radiation induced chances in the optical absorption spectra or KDP single crystals and laser damage threshold value or the irradiated. at room temperature samples having essentially d.irrerent impurity composition (DP I and KDP II) have been considered in this paper. In the samples or the rirst type (JP I) the impurity content was 5.1O rnass% and. in those or the second. type (KDP II) their concentration was in the range or i 1O — I 1O rnass%. In the irradiated. crystals or both types there observed was a shirt or the short wavelength absorption ed into the visible part o the spectiim with a simultaneous emergence or the band. havirg the maximum at X = 0.26 .un. As it rollows rrom the obtained data the characters or the dependence of the absorption coericient value on the dose is derined. by the type of irradiation. It should. be. noted. that the absolute value or the absorption coerriclent or the mentioned. band is not adequate ror the crystals with d.irrerent content or impurities. Apart rrom the said. band. in the II — type crystals one may observe a siiiricant increase or the background absorption over the whole optical spectrum which is proportional to the radiation dose and visually revealed in the brown-red colouring or the irradiated samples.
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Marina I. Kolybayeva, Viacheslav M. Puzikov, Igor M. Pritula, Vitaly I. Salo, and Serge V. Garnov "Effect of ionizing radiation on the properties of KDP single crystals", Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996);

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